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Finding the Fourth Proportional to 118,383.80, 177,567.60 and 38,420.60

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Solution

The fourth proportional to 118,383.80, 177,567.60 and 38,420.60 is: 57,628.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,383.80 : 177,567.60 = 38,420.60 : x
  2. Step 2: Convert to fraction form
    118,383.80/177,567.60 = 38,420.60/x
  3. Step 3: Cross multiply
    118,383.80x = 177,567.60 × 38,420.60
  4. Step 4: Simplify right side
    118,383.80x = 6,822,253,732.56
  5. Step 5: Solve for x
    x = 6,822,253,732.56/118,383.80
  6. Step 6: Final answer
    x = 57,628.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.